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Rotavirus NSP2: A Master Orchestrator of Early Viral Particle Assembly. | LitMetric

Rotavirus NSP2: A Master Orchestrator of Early Viral Particle Assembly.

Viruses

Department of Biology, Wake Forest University, Wake Downtown, 455 Vine Street, Winston-Salem, NC 27106, USA.

Published: May 2024

AI Article Synopsis

Article Abstract

Rotaviruses (RVs) are 11-segmented, double-stranded (ds) RNA viruses and important causes of acute gastroenteritis in humans and other animal species. Early RV particle assembly is a multi-step process that includes the assortment, packaging and replication of the 11 genome segments in close connection with capsid morphogenesis. This process occurs inside virally induced, cytosolic, membrane-less organelles called viroplasms. While many viral and cellular proteins play roles during early RV assembly, the octameric nonstructural protein 2 (NSP2) has emerged as a master orchestrator of this key stage of the viral replication cycle. NSP2 is critical for viroplasm biogenesis as well as for the selective RNA-RNA interactions that underpin the assortment of 11 viral genome segments. Moreover, NSP2's associated enzymatic activities might serve to maintain nucleotide pools for use during viral genome replication, a process that is concurrent with early particle assembly. The goal of this review article is to summarize the available data about the structures, functions and interactions of RV NSP2 while also drawing attention to important unanswered questions in the field.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11209291PMC
http://dx.doi.org/10.3390/v16060814DOI Listing

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